Option Card Slots

Three card slots in the BCU provide the flexibility to configure an RS-232 communication card or modem, an ARCNET communication card, and/or an ARCNET communication hub card.

Assignable Inputs

Each BCU can accommodate two universal inputs. Use UCMs to gain additional inputs.

Modular Installation

The BCU can be installed in a series of steps to increase efficiency and ease of installation, and to protect the hardware.

Enclosure Specifications

The BCU panel has a NEMA Type 1 rated enclosure designed for indoor installation only. The BCU is designed to operate between 32° F to 120° F (0° C to 49° C) at relative humidities between 10% to 90%, non-condensing.

Tracer 100 Series Systems: Tracer L, 100, and 100i

The Tracer 100 series panels are capable of monitoring HVAC equipment, providing the operator with management information, and communicating with other Tracer series systems. They also provide building automation and energy management functions through standalone control of HVAC equipment.

ICS Capability

Tracer L, 100, and 100i communicate over a twisted wire pair with UCMS on Trane HVAC equipment or Trane general purpose controllers on non-Trane or existing equipment. The ICS approach provides extensive monitoring and control capabilities while simplifying and reducing the cost of installation.

Software Capabilities

Tracer L, 100, and 100i provide the following features and capabilities to monitor equipment:

• Zone control groups associated  HVAC equipment into zones to coordinate their operation. Zone parameters include occupied/unoccupied heating and cooling  setpoints and temperature offsets for demand limiting and duty cycle modes.
• Reports and logs provide the operator with access to important system data. The following types of reports are available:

• Current, daily, and monthly energy use
• Yearly degree days
• Weekly temperature
• Event logs
• Input/output status
• Integrated Comfort system equipment status
• Monthly totalizing
• Monthly and yearly demand limiting
• Weekly and monthly timed override
• Custom status

• Run time and maintenance software monitors equipment run time, equipment starts, and calendar dates to generate maintenance messages.
• Custom messages can be created and used with run time and maintenance software and alarm processing functions.
• Trend log retains a historical record of values for specified points.